Universal Access To All Knowledge
Home Donate | Store | Blog | FAQ | Jobs | Volunteer Positions | Contact | Bios | Forums | Projects | Terms, Privacy, & Copyright
Search: Advanced Search
Anonymous User (login or join us)
Upload
Search Results
Results: 1 through 50 of 94 (0.029 secs)
You searched for: subject:"electromagnetic fields"
[1] 2     Next    Last
[texts]Quantifying hazardous electromagentic fields: practical considerations (Volume NBS Technical Note 389) - Bowman, Ronald R.
The usefulness of power density to express the hazard potential of electromagnetic fields is limited to simple fields that are approximately uniform and plane wave.For fields that are complicated by having reactive components or by having multipath interf
Keywords: Electromagnetic fields
Downloads: 34
[texts]Electromagnetic fields in rectangular slots (Volume University of Illinois Electrical Engineering Research Laboratory, Engineering Experiment Station; Antenna Laboratory technical report No. 31) - Kuhn, Nicholas John
"Contract AF33(616)-3220 Project No. 6(7-4600) Task 40572 Wright Air Development Center"
Keywords: Electromagnetic fields
Downloads: 55
[texts]Generation of standard electromagnetic fields in a TEM cell (Volume NIST Technical Note 1319) - Kanda, Motohisa; Orr, R. David

Keywords: Electromagnetic fields
Downloads: 97
[texts]Electromagnetic fields radiated from electrostatic discharges : theory and experiment (Volume NBS Technical Note 1314) - Wilson, Perry F.; Ondrejka, Arthur R.; Ma, Mark T.; Ladbury, John M.

Keywords: Electromagnetic fields
Downloads: 42
[texts]A dynamical theory of the electromagnetic field - Maxwell, James Clerk, 1831-1879
Extracted from: Philosophical transactions of the Royal Society of London, v. 155 (1865)
Keywords: Electromagnetic fields
Downloads: 165
[texts]Theoretical and experimental investigations of electromagnetic field distortion due to a perfectly conducting rectangular cylinder in a transverse electromagentic cell (Volume NBS Technical Note 1028) - Kanda, Motohisa.

Keywords: Electromagnetic compatibility; Electromagnetic fields
Downloads: 14
[texts]Development and construction of an electromagnetic near-field synthesizer (Volume NBS Technical Note 652) - Greene, Frank M.

Keywords: Electromagnetic fields; Frequency synthesizers
Downloads: 51
[texts]Electromagnetic Fields Exam - ELWAFDY
Electromagnetic Fields Exam
Keywords: Electromagnetic Fields Exam
Downloads: 549
[texts]Generating standard reference electromagnetic fields in the NIST anechoic chamber, 0.2 to 40 GHz (Volume NIST Technical Note 1335) - Hill, D. A. (David A.); Kanda, M.; Larsen, E. B.; Koepke, G. H.; Orr, R. D.

Keywords: Electromagnetic fields--Calibration
Downloads: 37
[texts]An electric and magnetic field sensor for simultaneous electromagnetic near-field measurements - theory (Volume NBS Technical Note 1062) - Kanda, Motohisa.

Keywords: Electromagnetic fields; Electromagnetic measurements
Downloads: 32
[texts]Acoustic Casimir effect - Holmes, Christopher David
Thesis advisors, Andrés Larraza, B.C. Denardo
Keywords: ELECTROMAGNETIC FIELDS; ACOUSTIC SIGNATURES
Downloads: 110
[texts]Design and calibration of the NBS isotropic electric-field monitor (EFM-5), 0.2 to 1000 MHz (Volume NBS Technical Note 1033) - Larsen, E. B.; Ries, F. X.

Keywords: Electromagnetic fields; Radiation--Measurement
Downloads: 67
[texts]A treatise on mental alchimy, electro-psychology, biology, magnetism and mesmerism : with the cards of classes, editorials, &c., making known their importance and remedial tendencies - Williams, B. Brown
Microfilm
Keywords: Electromagnetic Fields; Hypnosis
Downloads: 176
[texts]emfs_training_workbook - Labor Institute
Electromagnetic Fields (EMFs): A Training Workbook for Working People published by the Labor Institute and funded by a grant from the New York Department of Labor, Occupational Safety and Health Training and Education program (19-?).
Keywords: electromagnetic fields; EMF; Labor Institute
[texts]NIST calibration procedure for vertically polarized monopole antennas, 30 kHz to 300 MHz (Volume NIST Technical Note 1347) - Camell, D. G. (Dennis G.); Larsen, E. B.; Cruz, J. E.; Hill, D. A.

Keywords: Antennas (Electronics)--Calibration; Electromagnetic fields
Downloads: 36
[texts]Development of electric and magnetic near-field probes (Volume NBS Technical Note 658) - Greene, Frank M.

Keywords: Electromagnetic fields--Measurement; Antennas (Electronics)
Downloads: 57
[texts]A study of techniques for measuring the electromagnetic shielding effectiveness of materials (Volume NBS Technical Note 1095) - Wilson, Perry F.; Ma, Mark T.

Keywords: Shielding (Electricity); Electromagnetic waves; Electromagnetic fields
Downloads: 34
[texts]A method of determining the emission and susceptibility levels of electrically small objects using a TEM cell (Volume NBS Technical Note 1040) - Sreenivasiah, Ippalapalli; Chang, David C.; Ma, Mark T.

Keywords: Magnetic dipoles; Electromagnetic fields; Electric waves
Downloads: 22
[texts]An investigation of the current source-function technique for solving problems of electromagnetic scattering - Hanson, Donald Farness, 1946-
Thesis--University of Illinois
Keywords: Electromagnetic fields; Electromagnetic interactions; Scattering (Physics)
Downloads: 177
[texts]Small aperture analysis of the dual TEM cell and an investigation of test object scattering in a single TEM cell (Volume NBS Technical Note 1076) - Wilson, Perry F.; Ma, M. T.

Keywords: Electromagnetic fields; Perturbation (Quantum dynamics); Scattering (Physics)
Downloads: 29
[texts]Crack propagation studies to determine benign or catastrophic failure modes for aerospace thin-rim gears - Lewicki, David G
Analytical and experimental studies were performed to investigate the effect of rim thickness on gear tooth crack propagation. The goal was to determine whether cracks grew through gear teeth (benign failure mode) or through gear rims (catastrophic failure mode) for various rim thicknesses. Gear tooth crack propagation was simulated using a finite element based computer program. Principles of linear elastic fracture mechanics were used...
Keywords: PHOTONS; ELECTROMAGNETIC FIELDS; VACUUM; CAVITIES; NONLINEARITY
Downloads: 193
[texts]Possible estimation methodologies for electromagnetic field distributions in complex environments (Volume NBS Technical Note 1081) - Kanda, M.; Randa, J.; Nahman, N. S.

Keywords: Electromagnetic fields; Electromagnetic measurements; Electron probe microanalysis
Downloads: 20
[texts]A theory of mutual impedances and multiple reflections in an N-element array environment (Volume NBS Technical Note 1078) - Muth, Lorant A.

Keywords: Antenna arrays; Electromagnetic interactions; Electromagnetic fields
Downloads: 42
[texts]Design of the National Bureau of Standards isotropic magnetic field meter (MFM-10) 300 kHz to 100 MHz (Volume NBS Technical Note 1085) - Cruz, J. E.; Driver, L. D.; Kanda, M.

Keywords: Magnetic fields--Measurement; Electromagnetic fields--Measurement
Downloads: 22
[movies]MIT OpenCourseWare | Electromagnetic Fields and Energy - MIT OpenCourseWare
The purpose of these demonstrations is to make mathematical analysis of electromagnetism take on physical meaning. Based on relatively simple configurations and arrangements of equipment, they make a direct connection between what has been analytically derived and what is observed. They permit the student to observe physically what has been described symbolically. Often presented with a plot of theoretical predictions that are compared to measured data, these demonstrations give the opportunity ...
Keywords: Electromagnetic Fields; Energy; theory; diagrams; calculations
Downloads: 15,931
[movies]MITRES.6-001S08
Published in 1989 by Prentice-Hall, this book is a useful resource for educators and self-learners alike. The text is aimed at those who have seen Maxwell's equations in integral and differential form and who have been exposed to some integral theorems and differential operators. A hypertext version of this textbook can be found here. An accompanying set of video demonstrations is available below. These video demonstrations convey electromagnetism concepts...
Keywords: electromagnetic fields; energy; theory; diagrams; calculations
Downloads: 2,644
[audio]Is God In Your Brain?
Recording of a Lecture at University of Toronto 3-10-06 with Dr. Michael Persinger and Dr. Robert Brockman. The effects of environmental and experimental magnetic fields on the human brain. A feeling of a sense presence or God experience.
Keywords: Persinger; Brockman; brain; electromagnetic fields; God
Downloads: 251
[texts]ON THE ATLANTIC TROPICAL EXPERIMENT (GATE) SYNOPTIC-SCALE SUBPROGRAM - DOBRYSHMAN, Y. M
THE RESEARCH IS REPORTED CONCERNING THE PROCESSES OF SYNOPTIC SCALE IN THE TROPICAL REGIONS. THE DEVELOPMENT OF A NUMERICAL MODEL OF TROPICAL CIRCULATION TO STUDY THE INTERACTION OF ATMOSPHERIC PROCESSES IS DISCUSSED ALONG WITH THE ANALYSIS OF PROCESSES BY SYNOPTIC METHODS.
Keywords: MICROELECTRONICS; MICROSTRIP DEVICES; RESONATORS; DIELECTRIC PROPERTIES; ELECTROMAGNETIC FIELDS; FREQUENCY MEASUREMENT
Downloads: 71
[texts]Characterization of tissue-equivalent materials for high-frequency applications (200 MHz to 20 GHz) (Volume NIST Technical Note 1554) - Baker-Jarvis, James; Kim, Sung; Schallinger, Luke E.; Johnson, Justin; Givot, Brad.

Keywords: Electromagnetic fields--Permeability--Measurement; Dielectric measurements; Building materials--Electric properties
Downloads: 30
[texts]Integral equations for transient electromagnetic fields (Volume NBS Technical Note 1157) - Marx, Egon.

Keywords: Integral equations; Electromagnetic fields; Green's functions; Maxwell equations
Downloads: 32
[texts]Kinematic distributions for electron pair production by muons - Linsker, R
Cross sections and kinematic distributions for the trident production process plus or negative muon plus charge yields plus or minus muon plus electron plus positron plus charge (with charge = dipion moment and Fe) are given for beam energies of 100 to 300 GeV at fixed (electron positron) masses from 5 to 15 GeV. This process is interesting as a test of quantum electrodynamics at high energies, and in particular as a test of the form of the photon propagator at large timelike (four-momentum) squ...
Keywords: NONRELATIVISTIC MECHANICS; PARTICLE INTERACTIONS; QUANTUM MECHANICS; ELECTROMAGNETIC FIELDS
Downloads: 140
[texts]Survey of the experimental capabilities of the ONERA hydrodynamic tunnel, which offers flow visualization - Werle, H
Experimental capabilities and operating conditions of hydrodynamic wind-water tunnel including flow visualization
Keywords: IGNITION; MAGNETIC CONTROL; PLASMA ACCELERATORS; RAREFIED GASES; ELECTROMAGNETIC FIELDS; PERFORMANCE
Downloads: 130
[texts]Excitation of a TEM cell by a vertical electric Hertzian dipole (Volume NBS Technical Note 1037) - Wilson, Perry F.; Chang, David C.; Ma, Mark T.

Keywords: Impedance (Electricity)--Mathematical models; Magnetic dipoles; Electromagnetic fields
Downloads: 19
[texts]Flow structure beyond a poorly streamlined body - Ilizarova, L. I
Flow structure measurements in wakes of poorly streamlined bodies
Keywords: CYCLOTRONS; ELECTROMAGNETIC FIELDS; STARTING; ELECTRON BEAMS; HIGH FREQUENCIES; SELF EXCITATION
Downloads: 58
[texts]Measuring the permittivity and permeability of lossy materials : solids, liquids, metals, building materials, and negative-index materials (Volume NIST Technical Note 1536) - Baker-Jarvis, James; Janezic, Michael D.; Riddle, Bill F.; Johk, Robert T.; Kabos, P. (Pavel); Holloway, Christopher L.; Geyer, Richard G.; Grosvenor, Chriss A.

Keywords: Electromagnetic fields--Permeability--Measurement; Dielectric measurements; Building materials--Electric properties
Downloads: 92
[texts]Study of the transit time Sun-Earth of geomagnetic disturbances - Caroubalos, C
No Abstract Available
Keywords: CONFINEMENT; ELECTROMAGNETIC FIELDS; MAGNETOSTATIC FIELDS; PLASMA CONTROL; HIGH FREQUENCIES
Downloads: 52
[texts]Oazis in space - Kamin, A
One form of possible food production in a closed-cycle environment such as a spaceflight, the Oazis unit is described. The initial Oazis experiment, a unit launched on board the Cosmos 268 satellite, used hydrogen and urobacteria in two cylindrical containers with the electrolysis of water as the energy source. Oazis-2 was basically the same, but had a different energy supply system. After functioning 12 hours in space on Soyuz 13, the bacteria multiplied 30 times, much more than in trial experi...
Keywords: ELECTRICAL ENGINEERING; GEOPHYSICS; MINERAL EXPLORATION; ELECTROMAGNETIC FIELDS; ELECTROMAGNETIC INTERFERENCE; INSTRUMENT COMPENSATION; U.S.S.R
Downloads: 56
[texts]More precise calculation of the coefficients of heat exchange between a gas and suspended particles by the application of the method of heat of boundary layer - Kudrazasher, L. I
No Abstract Available
Keywords: EARTH IONOSPHERE; SIGNAL REFLECTION; WAVE INTERACTION; WAVE PROPAGATION; ELECTROMAGNETIC FIELDS; GEOMETRICAL OPTICS; INHOMOGENEITY; MAGNETIC FIELDS; REFRACTIVITY
Downloads: 65
[texts]Initial Time Dependence of Abundances in Solar Energetic Particle Events - Reames, Donald V.
We compare the initial behavior of Fe/O and He/H abundance ratios and their relationship to the evolution of the proton energy spectra in ''small'' and ''large'' gradual solar energetic particle (SEP) events. The results are qualitatively consistent with the behavior predicted by the theory of Ng et al. (1999a, b). He/H ratios that initially rise with time are a signature of scattering by non-Kolmogorov Alfven wave spectra generated by intense beams of shock-accelerated protons streaming outward...
Keywords: ELECTROMAGNETIC FIELDS; GRAVITATION; INERTIA; THEORETICAL PHYSICS; ZERO POINT ENERGY; VACUUM; STOCHASTIC PROCESSES; QUANTUM ELECTRODYNAMICS; HAMILTONIAN FUNCTIONS
Downloads: 73
[texts]Space shuttle - NON
The space shuttle is discussed as a reusable space vehicle operated as a transportation system for space missions in low earth orbit. Space shuttle studies and operational capabilities are reported for potential missions indicating that about 38 percent are likely to be spacelab missions with the remainder being the replacement, revisit, or retrieval of automated spacecraft.
Keywords: ELECTROMAGNETIC FIELDS; ENERGY DISTRIBUTION; WAVEGUIDES; ANTENNA RADIATION PATTERNS; ELECTROMAGNETIC WAVE TRANSMISSION; FIELD STRENGTH
Downloads: 125
[texts]Research on instructional strategies for optimizing the learning process - NON
Instructional strategies for optimizing learning processes and application of such principles to practical course of instruction in computer science
Keywords: ELECTROMAGNETIC FIELDS; IONIZATION; MEASURING INSTRUMENTS; PLASMA ACCELERATION; CURRENT DENSITY; TEMPERATURE MEASUREMENT; VELOCITY MEASUREMENT
Downloads: 119
[texts]Heat transfer measurements from a NACA 0012 airfoil in flight and in the NASA Lewis icing research tunnel - Poinsatte, Philip E
Local heat transfer coefficients from a smooth and roughened NACA 0012 airfoil were measured using a steady state heat flux method. Heat transfer measurements on the specially constructed 0.533 meter chord airfoil were made both in flight on the NASA Lewis Twin Otter Research Aircraft and in the NASA Lewis Icing Research Tunnel (IRT). Roughness was obtained by the attachment of small, 2 mm diameter, hemispheres of uniform size to the airfoil surface in four distinct patterns...
Keywords: ELECTRIC CURRENT; MAGNETIC FIELDS; SPACE STATIONS; TRANSMISSION LINES; CIRCUITS; ELECTROMAGNETIC FIELDS; FIELD STRENGTH; SPECTRA
Downloads: 228
[texts]Site Selection and Deployment Scenarios for Servicing of Deep-Space Observatories - Willenberg, Harvey J.
The deep-space environment and relative transportation accessibility of the Weak Stability Boundary (WSB) region connecting the Earth-Moon and Sun-Earth libration points makes the Sun-Earth L2 an attractive operating location for future observatories. A summary is presented of key characteristics of future observatories designed to operate in this region. The ability to service observatories that operate within the region around the Lagrange points may greatly enhance their reliability, lifetime...
Keywords: GROUND WATER; ICE; MARS SURFACE; MARS EXPLORATION; THIN FILMS; REMOTE SENSING; ELECTRIC FIELDS; MAGNETOMETERS; ELECTROMAGNETIC FIELDS
Downloads: 75
[texts]Physics for Everyone - Book 3 - Electrons - A. I. Kitaigorodsky
This book deals with physical phenomena in which our attention is focussed on the on the next level in the structure of matter â the electrical structure of atoms and molecules. Electrical and radio engineering, without which the existence of todayâs civilization is unconceivable, are based on laws governing the motion and interaction of electrical particles, primarily electrons, the quanta of electricity...
Keywords: physics; electrodynamics; electrons; electric current; magnets; magnetism; electromagnetic fields; electricity; atoms; molecules; matter
Downloads: 330
[texts]Directional Solidification of Mercury Cadmium Telluride During the Second United States Microgravity Payload Mission (USMP-2) - Gillies, D. C.
As a solid solution semiconductor having, a large separation between liquidus and solidus, mercury cadmium telluride (MCT) presents a formidable challenge to crystal growers desiring an alloy of high compositional uniformity. To avoid constitutional supercooling during Bridgman crystal growth it is necessary to solidify slowly in a high temperature gradient region. The necessary translation rate of less than 1 mm/hr results in a situation where fluid flow induced by gravity on earth is a signifi...
Keywords: FIELD STRENGTH; TRANSMITTERS; RADIO FREQUENCIES; ENCLOSURE; ELECTROMAGNETIC FIELDS; PREDICTIONS; NUMERICAL ANALYSIS; LAUNCH VEHICLES; PAYLOADS; TELEMETRY
Downloads: 103
[texts]Proximity Effects of High Voltage Transmission Lines on Humans
Recently new threats to humans are observed fromelectromagnetic radiation from various sources like mobilephones, transmission lines and many more. For providingcontinuous and uninterrupted supply of electric power toconsumer’s maintenance operation of high voltage power linesare often performed with systems energized or live. This isreferred as Hot Line maintenance or live line maintenancein this paper authors are concentrating on effects due to highvoltage transmission lines on persons invol...
Keywords: EHV lines; Power-Frequency Electro-Magnetic fields; Human Health; SAR; ANSYS; MATLAB
Downloads: 54
[texts]Active shielding concepts for the ionizing radiation in space final report, 1 sep. 1962 - 31 aug. 1963 - Dow, N. F.
Confined electromagnetic field shielding of spacecraft - active shielding of ionized radiation in space
Keywords: CONFINEMENT; ELECTROMAGNETIC FIELDS; IONIZING RADIATION; RADIATION SHIELDING; SHIELDING; SPACECRAFT SHIELDING; ELECTROMAGNETIC FIELD; RADIATION; SPACECRAFT SHIELDING
Downloads: 123
[texts]Rotorcraft flight-propulsion control integration: An eclectic design concept - Mihaloew, James R.
The NASA Ames and Lewis Research Centers, in conjunction with the Army Research and Technology Laboratories, have initiated and partially completed a joint research program focused on improving the performance, maneuverability, and operating characteristics of rotorcraft by integrating the flight and propulsion controls. The background of the program, its supporting programs, its goals and objectives, and an approach to accomplish them are discussed...
Keywords: ANTENNA ARRAYS; ANTENNA FEEDS; REFLECTOR ANTENNAS; SIDELOBES; SURFACE DISTORTION; ANTENNA DESIGN; ELECTROMAGNETIC FIELDS; INSTRUMENT COMPENSATION
Downloads: 137
[texts]Repeatability of the Over-All Errors of an Airplane Altimeter Installation in Landing-Approach Operations - Gracey, William
Flight tests have been conducted to determine the repeatability of the over-all altimetry errors in the landing-approach condition of two sensitive altimeters (Air Force type C-12) installed in the cockpit of a transport airplane and of four precision altimeters (Air Force type MA-1) installed in a photo-observer. Data were obtained through a speed range of 62 to 100 knots during 42 landing-approach operations conducted on four different days...
Keywords: SOLENOIDS; ELECTROMAGNETIC FIELDS; MAGNETIC FIELD CONFIGURATIONS; ELECTROMAGNETISM; ELLIPTIC FUNCTIONS; GRAPHS (CHARTS); COMPUTATION
Downloads: 117
[texts]Multilevel Atomic Coherent States and Atomic Holomorphic Representation - Cao, Chang-Qi
The notion of atomic coherent states is extended to the case of multilevel atom collective. Based on atomic coherent states, a holomorphic representation for atom collective states and operators is defined. An example is given to illustrate its application.
Keywords: COHERENT ELECTROMAGNETIC RADIATION; QUANTUM MECHANICS; ELECTROMAGNETIC FIELDS; INTEGRAL EQUATIONS; QUANTUM OPTICS
Downloads: 85
[1] 2     Next    Last
Advanced search

Group results by:

> Relevance
Mediatype
Collection

Related mediatypes

texts
movies
audio